This is a bit of a nightmare scenario for me. But I think it's going to depend on your country. Here in Sweden inmates are responsible for buying groceries and making their own food, as I understand it, which would help immensely for sure.

I'm not sure how the shopping works, I'm pretty sure you don't get to go to a store, so options might be limited.

Scary stuff. I had a recurring nightmare with a similar format, but I've never made that connection with a real life mindset or experience of mine. Maybe without noticing it I learned to accept something inevitable in my own life.

Just out of interest, how frequently did you have the nightmare and for how long?